498 WILSON EXPEDITION TO CHINA 



Schneider, III Handb. Lauhholzk. 1. 133 [1904]; in Fedde, Rep. Spec. A^or. X. 233 

 [1911]). The value of these forms is doubtful, and they need further investigation. 

 With the rich Japanese material before me I cannot separate as a species fi*om the 

 very villose forms representing A, hirsuta Turczaninow the variety sibirica which 

 seems to be connected with the t3T)e by intermediate forms of every degree. I refer 

 to this variety all the forms hitherto named A, tinctoria and A. sibirica or A. incana, 

 var. glauca of eastern Asia. 



Alnus hirsuta is very abundant in Hokkaido and in southern Saghahen, where in 

 open grassy country it forms nearly pure woods. It is a very bushy tree, not ex- 

 ceeding 20 m. in height and usually much less, with a short, very thick and often 

 gnarled trunk clothed with pale gray bark which is smooth or nearly so. Pictures 

 of this tree will be found under Nos. x354, x360, x363, x366, x376, x418, x419, 

 x420 of the collection of my Japanese photographs. E. H. W. 



■ 



Alnus hirsuta, var. sibirica Schneider, n. comb. 



Alnus sibirica Fischer ex Turczaninow in Bull. Soc. Nat. Mosc. XI. 101 {Cat. 

 PL Baical.) (nomen nudum) (1838) apud Komarov in Act. Hort. Petrop. 

 XXII. 57 (Fl. Mansh. II.) (1903). — Callier apud Schneider, III Handh. 

 Lauhholzk. I. 133 in adnot. (1904); II. 891, fig. 557 f-h (1912). — Nakai m 

 Tokyo BoL Mag. XXIX. 47 (1915). __ 



Alnus incana^ var. sibirica Spach in Ann. Sci. Nat. ser. 2, XV. 207 (1841). 

 Ledebour, Fl Ross. III. pt. 2, 65G (1850). — Turczaninow in Bull Soc. 

 Nat. Mosc. XXVII. 406 (1854) ; Fl Baical-Dahur. II. 133 (1856). — Traut- 

 vetter & Meyer in Middendorff, Sihir. Reise, I. pt. 2, Bot. abt. 2, 86 {Fl 

 Ochot.) (1856). — Regel in Nouv. Mem. Soc. Nal Mosc. XUl. 156 {Monog. 

 Betulac. 98) (1861); in Bull Soc. Nat Mosc. XXXVIII. 434 (1865); m 

 De Candolle, Prodr. XVI. pt. 2, 189 (1868). — Dippel, Handb. Laubholzk. 

 11. 164 (1892). — Herder in Act Hort. Petrop. XII. 77 (PI Radd.) (1892).— 

 Matsumura in Jour. Coll Sci. Tokyo, XVI. art. 5, 12 (1902); ^^d. Fl- 

 Jap. II. pt. 2, 18 (1912). — Winkler in Engler, Pflanzenr. IV.-61, 1^^ 

 (1904). — Nakai in Jour. Coll Sci. Tokyo, XXXI. 204 {Fl Kor.) (1911). 



Alnus incana, var. glauca Regel in Nouv. Mem. Soc. Nal Mosc. XIII- pt A 

 154 (Monog. Betulac. 96) (1861), quoad specim. sibirica; in Bull Soc. JSat. 

 Mosc. XXXVIII. 433 (1865), quoad specim. e Mandshuria et Japonia; in 

 De Candolle, Prodr. XVI. pt. 2, 189 (1868), quoad specim. e Sibina, Mand- 

 shuria et Japonia. — Franchet & Savatier, Enum. PI Jap. I. 458 (1875). 

 Herder in Act. Hort Petrop. XII. 77 (pro parte) (1892). — PaUbm in Act. 

 Hort. Petrop. XVIII. 194 (1900), exclud. syn. Michaux. . 



Alnus tinctoria Komarov in Act. Horl Petrop. XXII. 56 (Fl Mansh. n-) 

 (non Sargent sensu stricto) (1903). — CalUer apud Schneider, III ^9^^^?' 

 Laubholzk. I. 134, fig. 68 h-hS 72 1 (1904); II. 891, fig. 557 i (191^}- i° 

 Fedde, Rep. Spec. Nov. X. 233 (1911). — Rehder in Bailey, Stand, tyc^- 

 Hort. I. 253 (1914). — Nakai in Tokyo BoL Mag. XXIX. 47 (l^^^^* > _ 



Alnus incana, var. tinctoria Winkler in Engler, Pflanzenr. IV .-61, 123 (1904;. 

 Matsumura, Ind. PI Jap. II. pt. 2, 17 (1912). MQll)' 



Alnus tinctoria, var. typica Callier in Fedde, Rep. Spec. Nov.X. 233 (19^ -»» 

 in Schneider, III. Handb. Laubholzk. II. 891 (1912). /iq121 



Alnus tincloHa, var. obtusiloba CalHer, 1. c. 233 (1911) ; 1. c. 891, fig. SS'' {^|^| ^' 



Alnus tinctoria, var. mandschurica Callier, 1. c. 233 (1911); 1- c. ^9 U^^y fig 



Alnus sibirica, var. typica CalUer in Schneider, III Handb. Laubholzk. »yi. »* 

 557 f (1912). 



Alnus sibirica, var. oxyloba Callier, 1. c. 891, fig. 557 g (1912). 



